kitttimothy55
14.08.2020 •
Physics
A boy with mass 50kg running at 50m/s homos on a 20 kg trolley traveling at the same direction at 1.5 m/s.What is the common velocity?
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Ответ:
The answer is 36.14 m/s
Explanation:
from
m1 ×u1 + m2 × u2 =m1 × v + m2 × v
v = m1 × u1 + m2 + u2/(m1 + m2)
v = 50 ×50 + 20 × 15 /(50 + 70)
v = 2500 + 30/(70)
v = 36.14 m/s
v - is common velocity
Ответ:
Here's a link to the
https://cutt.ly/wzdvC7R